Home/CVE/The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows
CVE

CVE-2013-0176

The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows

The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a "Client: Diffie-Hellman Key Exchange Init" packet.

MEDIUM · CVSS 4.3 EPSS 0.01019
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
▤

Affected Products & Versions

2
libssh<= 0.5.3
libsshall versions
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v2 (legacy) · secalert@redhat.com
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This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Published to NVD05 Feb 2013 · 11:55 PM
⚑

Vendor Advisories

2
suse-csafopenSUSE-SU-2024:10036-1
usnUSN-1707-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098065.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098094.html
http://secunia.com/advisories/51982Vendor Advisory
http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/PatchVendor Advisory
http://www.ubuntu.com/usn/USN-1707-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/81595
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